Retirement Plans - Schedule of Net Benefit Costs (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
United States
Defined Benefit Plan Disclosure
Interest cost	$ 66	$ 71
Expected return on plan assets	(68)	(64)
Recognized net actuarial loss	15	16
Net periodic pension income	13	23
United Kingdom
Defined Benefit Plan Disclosure
Interest cost	56	55
Expected return on plan assets	(94)	(83)
Amortization of prior service costs and transition amount	6	6
Recognized net actuarial loss	8	3
Net periodic pension income	$ (24)	$ (19)